Door closing device



April 19, 1938. G. PIPIA DOOR CLOSING DEVICE Filed March 23, 1957 jv bePzjmlw m tior2zey Irwan $02 k mm MUN Patented Apr. 19, 1938 UNITEDSTATES DOOR CLOSING DEVICE Giuseppe Pipia, Woodside, N. Y., assignor toCerami Self-Closing Device Corporation, New

York, N. Y.

Application March 23, 1937, Serial No. 132,545

9 Claims.

This invention relates to a door closing device. More particularly, itrelates to spring hinges for insertion in swinging doors and door framesfor normally retaining the doors in closed position and for normallyclosing the same when open. The invention furthermore relates to thegeneral type of hinges shown and described in the applications ofGiuseppe Cerami dated July 5, 1935, and January 16, 1936 and bearingserial numbers, 29,985, and 59,465, respectively.

One of the objects of the present invention is to provide a novellocking device as an improvement on the inventions disclosed in theabove cited, filed applications by Giuseppe Cerami.

Another object of the present invention is to provide a simplyconstructed, effective and operable device adapted for operativelyclosing doors and other swinging structure parts to be normally retainedin closed position.

Still another important object of my invention is to provide a devicewhich can be automatically machined at a relatively low cost ofproduction and easily assembled and mounted in the doors of the typecommonly used.

One further and more specific object of my invention is to provide novelcombined, cooperative means for effectively retaining a door or otherswing structural part in adjustable open position.

A further object of my invention is to provide a compact door closingdevice which can be adjustable to effectively operate the usual type ofdoor.

With the above and other objects in view, the invention in its preferredform, generally includes a novel combination of cooperative parts anddetails of construction hereinafter fully described and illustrated inthe accompanying drawing.

The accompanying drawing shows a preferred embodiment of my invention inwhich like characters of reference relate to like parts thruout.

Fig. 1 is a sectional elevation of the embodiment hereinafter described.

Fig. 2 is a vertical section showing the device in open operativeposition, and

Fig. 3 is a section taken in the direction of arrows on line 33 of Fig.1.

In the preferred embodiment of my invention as shown in the accompanyingdrawing, a face or front plate I0 is provided with a plurality ofspaced, aligned openings II and I2, respectively.

Extending from the rear of the face plate are top and bottom parallelwalls l3 and I4 respectively, and a side wall 15, all integral with theface plate. Said walls and face plate form a rectangular casing with oneside and the end open, while the face plate is provided with a partlyrestricted preferably rectangular opening I6.

The side wall 15 of the casing is further provided with spaced lateralextensions I! and I8 forming longitudinal open compartments or bores 19and 20, respectively with the top and. bottom walls i3 and I4. It is tobe noted that the extensions are parallel with the top and bottom wallsand are of the same Width as the wall. Lateral extensions l1 and I8,furthermore, have a partly restricted section 2! and 22 respectively,disposed adjacent the rear of the face plate It) and in which arehorizontally fixed pins 23 and 24, respectively.

Intermediate theextensions I7 and I 8 is an open compartment 25 in whicha hollow plunger 26 is slidable. Said plunger has a forward reduced endportion 27 adapted to pass thru central rectangular opening l6 of faceplate l0. Said reduced end portion is furthermore, provided with a bore28 into which fits a pin 29 connecting the same with spaced lugs 30 and3! of a door plate 32. It is to be noted, that said lugs are preferablyintegral with the door plate 32 and are adapted to fit above and belowthe restricted end portion 27 and form a pivotal connection therewith.The upper lug 30 is grooved at 33 for accommodating a pivotal pin 34,when the door plate is at right angles to the face plate. Said pin ispivotally-mounted in the plunger by means of a cross member 35 and isautomatically brought into engaging position with the groove of the doorplate lug by means of a tensioned spring member 36, as shown in Fig. 2of the drawing.

Said face plate and door plate when in use, normally would be in a flushface to face position as shown in Fig. l and are normally retained insuch position by means of the cooperation of parts hereinafterdescribed.

Pivoted to pins 23 and 24 in restricted sections 2| and 22 are leveragearms 37 and 38, respectively, Whose rear terminal longitudinal portionseach extend into compartment 25 and have one edge slidably abuttingagainst roller members 39 and 40 respectively. It is to be noted thatsaid arms are of the same construction and that while in contact withroller members 39 and 40 they cross each other as shown in Figs. 1 and 2of the drawing. Said rollers are disposed at the middle of the terminalportion of the plunger 25 and are held in position by means of a crosspin 4| extending thru the parallel walls 42 and 43 of the plunger. Theforward ends of the leverage arms 37 and 38 are provided with claws 44and 45, respectively which form an abutment against respective cams 46and 4'1. Said cams are slidably mounted on screw rods 48 and 49. It isto be noted that the rods respectively extend from the openings H and I2thru longitudinal bores I9 and 20.

Each of the rods is furthermore provided with a coaxial tensioned springmember 50 and 5| respectively, one end of which engages the cam memberswhile the other end abuts against respective screw nuts 52 and 53mounted on the terminal portions of the screw rods. The side edges ofsaid nuts are adapted to form a contact with wall l5 to permit theiradjustment on the screw rods. It is to be noted that the tension ofsprings and 5! may be adjusted by regulating the distance of the nuts 52and 53 on the" In this manner the necessary or.

screw rods. desired pressure may be exerted by the springs against claws44 and 45, to obtain the best results and facilitate movement of thedoor plate against front plate l0. 7

Door plate 32 being of less width than front plate In is provided at itscentral portion with a pair of spaced horizontal roller members 54 and55 adapted to form a rolling contact with the front plate when there isangular relative movement of the plates. Said roller members are mountedin a lug or lateral extension 56 integral with the door plate 32 andretained therein by means of individual pins 51 and 58 for therespective roller members 54 and 55. It is to be noted that door plate32 can be swung thru 180 with respect to the plunger and can be easilyfixed onto a door, while the casing with the plunger is mounted in adoor frame, not shown.

In operation of the embodiment, when a door carrying the door plate 32is opened, the plunger 26 will be pulled out. The leverage arms 3'! and38 are actuated and roll along members 39 and 40 while the claw endsexert pressure against the springs 50 and 5| by way of cams 44 and 45and compress the same on rods 48 and 49, while the other ends slideagainst rollers 39 and 49. When the door is released the springs causethe levers to resume their normal position as shown in Fig. l and drawin the plunger to close the door.

From the foregoing description taken in connection with the accompanyingdrawing it will be noted that my invention possesses many advantages notheretofore found in devices of the prior art. According to my invention,the device may be mounted in a. frame with a door constructed toswingthrough 180. The device can be easily installed in a door frame andattached to a door. Furthermore, the tension of the spring compressionmembers may be easily varied to suit the different types of doors now onthe market.

The parts of the preferred form as described herein are easy tomanufacture and assemble. A door having the embodiment as shown anddescribed herein can be easily swung open and retained in lockedposition.

While one preferred form of my invention has been disclosed and shown,it is to be noted that modifications as to arrangement and operation ofparts, use of materials and their construction may be made withoutdeparting from the spirit and scope of the claims herein.

I claim:

1. A door closing device, comprising an open casing, spaced parallelcompression members slidable in the casing, a reciprocable memberintermediate the compression members, a plate member in connection withthe reciprocable member, and coacting means pivoted in the casingadapted to actuate the compression members upon movement of thereciprocable member.

2. An automatically closing hinge device, comprising a casing, aplurality of spaced compression members in the casing, a reciprocableplunger intermediate the compression members, slidable in said casing, apair of leverage members pivotally mounted in the casing and extendinginto the plunger, one end of the members forming a contact with therespective compression members, and a door plate forming a hingedconnection with the plunger. Y

3. A door closing device, comprising an open casing for a door frame, aplurality of spaced retention members extending thru the casing, acompression member for each of the retention members, a reciprocableplunger intermediate the compression members, a door plate abutting oneend of the casing hingedly connected with the plunger, a pair ofleverage members pivoted adjacent one end to the casing and abutting thecompression members, a pair of roller members coaxially mounted in theplunger for frictionally engaging the other end of the leverage members,whereby upon movement of the plunger the leverage members are actuatedby the compression members to retain the door plate in abuttingposition.

4. A door closing device according to claim 3, in which one end of eachcompression member is provided with a cam member slidable along theretention members and adapted to abut against one end of the leveragearms.

5. A door closing device according to claim 3, in which the plunger hasa. restricted terminal portion adapted to move outwardly of the casingwhen the door plate is actuated angularly of the abutting face of thecasing.

6. A door closing device according to claim 3, in which the plunger isprovided with a tensioned, depressing member for engaging the door platewhen the latter is disposed at of the casing and retaining the same insuch position.

-7. A door closing device comprising an open casing, a plunger slidablein and out of said casing, a compression member on either side of saidplunger, leverage members pivoted to the casing havingone end adapted toactuate the compression members, means mounted in the plunger forming arotary contact with the other end of the leverage members, and a doorplate hingedly connected to the plunger adapted to draw the latter fromthe casing. I

8. A door closing device, comprising an open casing for insertion in adoor frame, a plunger slidable in and out of said casing, a springmember-on each side of said plunger, means pivoted to the casing adaptedto compress the spring member on each side of the plunger when theplunger is drawn out of the casing, rotatable means pivoted to theplunger for guiding said means when the plunger is retracted into thecasing, and a door plate member hingedly connected to the plungeradapted to be drawn-into flush position against the adjacent edge of thecasing by the actu'ation of the spring members.

9. An automatic door closing device, comprising a casing adapted to fitin a door frame, a pair of spaced shaft members, a compression memberfor each shaftmember having one end provided with a contacting cam, aplunger reciprocable in and out of the casing, a pair of diagonallyopposed leverage members pivoted adjacent one end to the casing forminga contact with the cams, and having their other ends ektending into theplunger, for normally forcing the same into the casing, and a door platehingedly connected to the plunger adapted upon actuation of the door topull out the plunger against the action of the compression members.

GIUSEPPE PIPIA.

